Can also be programmed using Microchip's MPLAB (along with a PICkit 3 or 6-pin header)

Arduino Mega form factor

83 available I/O

User LED

The chipKIT™ Max32™ combines same form factor with the popular Arduino open source hardware prototyping platform with the performance of the Microchip PIC32 microcontroller. It features a USB serial port interface for connection to the Arduino IDE and can be powered via USB or an external power supply.

The Max32 board takes advantage of the powerful PIC32MX795F512 microcontroller. This microcontroller features a 32-bit MIPS processor core running at 80Mhz, 512K of flash program memory and 128K of SRAM data memory. In addition, the processor provides a USB 2 OTG controller, 10/100 Ethernet MAC and dual CAN controllers that can be accessed via add-on I/O shields.

The Max32 can be programmed using of a modified version of the Arduino IDE, available as a FREE download. In addition to operation within the modified Arduino development environment, the Max32 is fully compatible with the advanced Microchip MPLAB development environment and the PICKit3 in-system programmer/debugger.

Open source EAGLE project for the chipKIT Max32. Created in EAGLE v5.11

Great Arduino Compatible Board with Loads of Mermory

I bought this board recently and it immediately stated replacing my Arduino Mega 2560 in almost every project.
Some things to understand about this board:
1. It runs on 3.3Volt logic.
2. The chipKIT Uno32 has 128K bytes of programming space, & the chipKIT Max32 has 512K bytes.
3. All digital I/O pins on the
chipKIT boards are 5V tolerant.
4. The analog capable I/O pins are
not 5V tolerant.